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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 9 — Sep. 1, 2012
  • pp: 2438–2445

Inverse scattering of dispersive stratified structures

Johannes Skaar and Magnus W. Haakestad  »View Author Affiliations


JOSA B, Vol. 29, Issue 9, pp. 2438-2445 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002438


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Abstract

We consider the inverse-scattering problem of retrieving the structural parameters of a stratified medium consisting of dispersive materials, given knowledge of the complex reflection coefficient in a finite frequency range. It is shown that the inverse-scattering problem does not have a unique solution in general. When the dispersion is sufficiently small, such that the time-domain Fresnel reflections have durations less than the round-trip time in the layers, the solution is unique and can be found by layer peeling. Numerical examples with dispersive and lossy media are given, demonstrating the usefulness of the method for, e.g., terahertz technology.

© 2012 Optical Society of America

OCIS Codes
(120.5700) Instrumentation, measurement, and metrology : Reflection
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(310.0310) Thin films : Thin films
(300.6495) Spectroscopy : Spectroscopy, teraherz
(100.3200) Image processing : Inverse scattering

ToC Category:
Image Processing

History
Original Manuscript: March 26, 2012
Revised Manuscript: July 3, 2012
Manuscript Accepted: July 9, 2012
Published: August 21, 2012

Citation
Johannes Skaar and Magnus W. Haakestad, "Inverse scattering of dispersive stratified structures," J. Opt. Soc. Am. B 29, 2438-2445 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-9-2438


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